Date: 26/10/2008

White LED driver for automotive display backlighting applications

ROHM Electronics launched the BD8113EFV-E2, a white LED driver IC designed to provide constant current drive for white LED backlights in medium- to large-format automotive TFT-LCD displays.
This dual-channel driver is capable of up to 150mA constant current per channel with current-mode buck/boost DC/DC control, ensuring constant display brightness, even with unstable battery input voltages over the entire automotive temperature range.

Other features:

1. The buck/boost configuration frees up the restriction on the number of LEDs that can be connected in series.

2. Maximum input voltage of 36V (supply voltage range: 5V to 30V)
3. Operating temperature range of (-40°C to 105°C).
4. Built-in undervoltage lockout (UVLO), overvoltage protection (OVP), thermal shutdown (TSD), over current protection (OCP) and short-circuit protection (SCP).
5. Inputs provided for brightness modulation via PWM or VDAC control.

Packaging: HTSSOP-B24 (heat-sink TSSOP) package

For complete details, visit: www.rohmelectronics.com